Questions & Answers

In this page you will find the common questions that may come to mind when starting with QLC+.
Here you can either find the answer directly or find help to point you in the right direction.

Q:

QLC+ cannot detect my USB device

A:

QLC+ supports a wide variety of USB devices. First of all you should check if the physical connection is OK. Usually a LED on your device should indicate if it is powered up and working correctly.
If you are using Windows and your device is manufactured by Peperoni or Velleman, please read the information on how to get them working on these help pages. For licensing issues they both need an extra DLL file to work. Please check Peperoni output plugin or Velleman output plugin
If you're using Linux, please check if your distribution detected the device when plugged in. Basically, the "dmesg" command should tell you something.

Q:

I've got several buttons in my Virtual Console. I need a way to disable the currently active button when I enable another one. How do I do that ?

A:

Simply place your buttons inside a Solo Frame. It does exactly that.

Q:

When I start an EFX function, all my fixtures go to full intensity and I can't make them dimmer.

A:

Please, read this note.

Q:

I just upgraded my Mac to OSX Mavericks (or later) and my USB DMX adapter doesn't work anymore.

A:

The problem is in a new Apple USB driver, which takes control of every FTDI based device detected in the system.
You can download the ENTTEC FTDI Driver Control tool to enable/disable the Apple driver.
Otherwise you can disable the driver manually, by following the steps below.
From a terminal type the following commands:
      cd /System/Library/Extensions/IOUSBFamily.kext/Contents/PlugIns
      sudo mv AppleUSBFTDI.kext AppleUSBFTDI.disabled
      sudo touch /System/Library/Extensions
      
Note 1: this can compromise the behaviour of other USB devices, so do it only if you know what you're doing!
Note 2: every time OSX receives an update, you need to perform this procedure again !
Note 3: Most likely, when you disable/enable the Apple driver, you need to reboot your Mac

Q:

Where is the QLC+ user folder located in my system ?

A:

The user folder is where user fixtures, input profiles, RGB scripts and MIDI templates go.
It changes depending on your operating system:
Linux: it is a hidden folder in your user home directory: $HOME/.qlcplus
Windows: it is a folder in your user (e.g. MyUser) directory: C:\Users\MyUser\QLC+
OSX: it is located in your user "Library" directory: $HOME/Library/Application\ Support/QLC+
You can reach any of these folders from a terminal with the 'cd' command. For example:
cd $HOME/Library/Application\ Support/QLC+
Please keep in mind that fixures and input profiles found in the user folder will have precedence over the same files in the QLC+ system folder.